[time-nuts] 10811's

[Bob Camp]

Hi

There is no reason (at this point) to do anything other than characterize what you have. Parts age, repairs are made, stuff happens (shock / vibration / rain). 

Bob

> On Nov 17, 2014, at 10:13 PM, bownes <bownes at gmail.com> wrote:
> 
> Is there a quick and dirty summary of which are the "good" 10811's? Otherwise, I clearly need to go through my collection and characterize them! :)
> 
> I should probably do that anyway...
> 
> 
> 
>> On Nov 17, 2014, at 21:50, Bob Camp <kb8tq at n1k.org> wrote:
>> 
>> Hi
>> 
>> As best anybody can tell, the improved phase noise and ADEV 10811’s came out of a screening / select process. There is a finite chance that a “normal part number” 10811 could be as good as or better than a part from one of the “better part number” versions.
>> 
>> Bob
>> 
>>> On Nov 17, 2014, at 9:42 PM, John Allen <john at pcsupportsolutions.com> wrote:
>>> 
>>> As you all know, but has not been mentioned, is that there are many versions
>>> of the venerable 10811, which different specifications, including phase
>>> noise and stability.
>>> 
>>> 
>>> 
>>> The well known HP document 90027-1 lists many of them, and thanks to TVB, it
>>> is here:
>>> 
>>> http://www.leapsecond.com/museum/10811a/90027-1.pdf
>>> 
>>> 
>>> 
>>> The contents include
>>> 
>>> 1 10811D/E Crystal Oscillators 2 10811D/E Option 001  3 10811D/E Option 002
>>> 4 10811D/E Option 003  5 10811D/E Option 100 
>>> 
>>> 6 10811-60111 7 10811-60109 8 10811-60209 9 10811-60211 10 10811-60102 11
>>> 05071-60219 12 10811-60158 13 10811-60160 
>>> 
>>> 14 10811-60164
>>> 
>>> 
>>> 
>>> I hope that this is helpful. Regards, John K1AE
>>> 
>>> 
>>> 
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